Type-writing machine.



GEORGES ZIIZGLER, OF l9AR-IS, FRANCE.

TYPE-WRITING MACHINE.

Specification of Letters Patent.

Patented June 2, 1914.

Application filed November 20. 1911. Serial No. 661,384.

To all whom it may concern Be it known that I, (inoncns Ziiiocnn, a citizen of the Republic of France, residing at Paris, France, have invented new and useful Improvements in Typeinting Machines, of which the following is a specification.

My invention relates to typewriters and more particularly to that class of machine in which a single element is used. to carry the type characters.

My invention provides a typewriter of the class mentioned in which the mechanism for operating the element carrying the type characters is of extremely simple construction and comprises a minimum number of parts, without sacrificing the efficiency of the machine in any particular, but on the other hand increasing the rapidity with which it may be operated.

In the drawing annexed hereto and form ing a part of this specification: Figure 1 is a diagrammatic illustration of the elements which cooperate to bring the type characters into contact with the paper or other material to be printed on. Fig. 2 illustrates the re lation of the key stem to the helically twisted portion of the axle carrying the element bearing the type characters, when the keys are in the normal position. Fig. 3 illustrates the relation of the key stem to the helically twisted portion of the aXle carrying the element bearing the type ch aracters, when one key is in the depressed position. Fig. 4 illustrates a practical embodiment of my invention in a typewriting machine. Fig. 5 is a section on the line XX of Fig. 4:.

Referring to the drawings in which like characters of reference designate similar parts. In Fig. 1, which shows diagrammatically the relation of the members cooperating to operate the element bearing the type characters, 1 is a semi-cylindricalmember, carrying on its curved periphery a 1nnltiplicity of type characters. The member 1 is carried by an axle 2 having a flattened portion 3 between its ends, said flattened portion being twisted so as to present a helical surface; at the end of the axle 3 is carried a ball 4 or other member by which the said axle may be journaled in the carriage frame of the typewriting machine so as to allow universal movement. The members 5 represent the stems of the keys in dicated at 13 in Fig. 4% and which in their depressed posit-ion contact with the helical surface of the flattened portion. 3 of the axle and serving to rotate the said. flattened portion and member 1, at the same time depressing the type carrying member 1 until it contacts with the paper 6 or other material to be printed on. The rotating of the axle serves to bring the particular type character represented by the key depressed into position. to print on the paper when the type carrying member comes in contact therewith. In Fig. 2 it will be observed that the stem of the key is in its normal position and that the flattened portion of the axle lies at an angle to the bottom of the stem; while in Fig. 3 the key is shown in a depressed position required for printingand. the axle has rotated until the stem of the key lies with its bottom portion flat against the helical surface of the flattened portion.

Referring particularly to Figs. 4. and 5 in which I have illustrated a practical embodiment of my invention; 7 is a carriage frame slidable longitudinally on the base 8 and guided by the tracks 9. Mounted. transversely of the carriage frame '7 the axle 2 having the twisted flattened portion 3 and journaled. at the rear end in the socket 10, or in any other suitable manner allowing universal movemcnt, this mounting not comprising part of the present invention. The forward end of the axle extends through the slot 11. in the vertical wall of the carriage frame and. carries the semi-cylindrical type bearing member 1 which is directly over a suitable member adapted to hold the paper 6 or material adapted to be printed on. The axle 2 isresilicnlly supported at the forward end by the spring 12 which raises it to its normal position after having been depressed. for printing. In the top plate of the carriage frame arranged a series of keys 13 each one representing a particular type character on the member 1, and. adapted when depressed to contact the stem 5 carried thereby at a certain point with the helical surface of the portion 3 so as to cause the member 1 to rotate and bring into the proper position to imprint the type character, which it represents, on the paper 6. The keys 13 carry on their stems above the top plate of the carriage frame suitable means such as springs 15 to return them to their normal position after being depressed and. are also prevented from moving too far upwardly by means of the pins 16 contacting with the (ill under surface of the top plate of the carriage. Arranged on the base 8 is a suitable member 14 adapted to carry the paper 6 or other material to be printed on, but as this member comprises no part of my invention it is not necessary to describe it in particular and any other suitable member having the same function may be subrying member mounted to permit universal movement, and having a flattened portion midway between its ends presenting a helical surface, of depressible keys having stems adapted to engage the helical surface of said flattened portion of the axle and cause the type carrying member to rotate, whereby the type character representing the particular key depressed is brought into position to imprint and at the same time depress the axle downward toward the paper or other material to be printed on.

In testimony whereof I afiix my signature in presence of two witnesses.

GEORGES ZIEGLER. V'Vitnesses JULIEN GAVERNE: HANSON G. CoXn.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. 0. 

